The male protagonist Lu Zhishen has had a crush on Sheng Liu, who is five years older than him, and Sheng Liu has treated him as a younger brother since he was a child. Every time he sees a man approaching her, he can do nothing but secretly get jealous.
Until her twentieth birthday when she asked what gift she wanted, he blurted out "you". Since that day's confession, it was like there was a wall separating the two of them. Sheng Liu went abroad for two years for some reason. When he came back after two years, he found that Lu Zhishen was no longer the same Lu Zhishen.
Intention: No